Present simple Passive - am/is/are + глагол ed/3 столбик
Past simple Passive - was (1)/were (много) + глагол ed/3 столбик
2 are produced by drug companies
3 I was examined by two doctors at the hospital
4 My leg was broken in an accident
5 Acupuncture was developed by Chinese
6 Infectious diseases were taken to America by Europeans.
7 are used by some doctors
8 are saved by vaccinations.